Millennium
noun /mɪˈlɛn.i.əm/ — A period of one thousand years; a hoped-for golden age.
Definition
A period of one thousand years. In religious tradition (particularly Christian apocalyptic thought), a hoped-for period of happiness, peace, and prosperity. The millennium is time at its grandest human scale — long enough to contain civilisational change.
Beyond the definition
A millennium contains everything and nothing — all of it beyond the span of a single life. But it is how humans like to think when they dare to dream large: not just for now, but for a thousand years.
Origin & history
Latin: 'mille' (thousand) + 'annus' (year). The concept of a millennial golden age appears in the Book of Revelation and has informed apocalyptic thought across cultures.
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
The cathedral had been standing for nearly a millennium — it had been here before everything she knew.
He planted the oak with the millennium in mind, knowing only his great-great-grandchildren might sit under it.
The turn of the millennium felt like a seam in time — though what came before and after looked remarkably similar.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Millennium” when the meaning fits your context: A period of one thousand years. In religious tradition (particularly Christian apocalyptic thought), a hoped-for period of happiness, peace, and prosperity. The millennium is time at its grandest human scale — long enough to contain civilisational change.
Synonyms
thousand years, golden age, chiliad
Antonyms
moment, year
Related words
Millennium vs century
A millennium represents exactly one thousand years. A century represents exactly one hundred years; both are used to divide time into specific blocks.
Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Fictional scene
Time Layered in Landscape
An adult stands on a hill overlooking crumbling ruins in the foreground and a modern city in the distance.
The gap between the ancient ruins and the modern city represents the scale of a millennium, illustrating a time frame long enough for profound civilizational changes to occur and leave physical evidence.
Image credit: Wordspun · AI-generated conceptual illustration
Questions about this word
What does "Millennium" mean?
Millennium is noun meaning: A period of one thousand years; a hoped-for golden age.. A period of one thousand years. In religious tradition (particularly Christian apocalyptic thought), a hoped-for period of happiness, peace, and prosperity. The millennium is time at its grandest human scale — long enough to contain civilisational change.
Where does the word "Millennium" come from?
Latin: 'mille' (thousand) + 'annus' (year). The concept of a millennial golden age appears in the Book of Revelation and has informed apocalyptic thought across cultures.